4th girl name starting with A?

We just found out we're having our 4th little girl and we're super stumped for names. We all start with A, my name is Aurora, my husband is Aiden and our daughters are Anastasia, Athena and Arwen and we have no idea what to go for for this baby. We like Amber, Autumn and Allison and I made a poll in here but now I'm thinking that none of them sound quite right with our other daughters' names. Any ideas?

Edit: we can't use Abigail as it is a close friend's name